Home / 12,547,021.44-18,821,431.70-5,253,141.34

Finding the Fourth Proportional to 12,547,021.44, 18,821,431.70 and 5,253,141.34

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Solution

The fourth proportional to 12,547,021.44, 18,821,431.70 and 5,253,141.34 is: 7,880,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,021.44 : 18,821,431.70 = 5,253,141.34 : x
  2. Step 2: Convert to fraction form
    12,547,021.44/18,821,431.70 = 5,253,141.34/x
  3. Step 3: Cross multiply
    12,547,021.44x = 18,821,431.70 × 5,253,141.34
  4. Step 4: Simplify right side
    12,547,021.44x = 98,871,640,941,256.47
  5. Step 5: Solve for x
    x = 98,871,640,941,256.47/12,547,021.44
  6. Step 6: Final answer
    x = 7,880,088.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.